/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineCore/Public/MoviePipelineSetting.h
What is the result of the last validation? Only valid if the setting has hadValidateState()called on it.
virtual [EMoviePipelineValidationState](API\Plugins\MovieRenderPipelineCore\EMoviePipelineValidationState) GetValidationState() const